jQuery(function($){
	$('.focus').focus();
	if($("#db_type").size()) {
		$("#db_type").click(function() {
			$("p.db_type").hide();
			$("p.db_type_" + $(this).val()).show();
		}).triggerHandler("click");
	}
	if($("#mod_rewrite_checking").size()) {
		var checking = $("#mod_rewrite_checking");
		$.ajax({
			url: checking.data("url"),
			cache : false,
			dataType: "text",
			success: function(data) {
				if($.trim(data) === checking.data("verify")) {
					$("#mod_write_status span.ok").show();
					$("#mod_write_status span.no").hide();
					$("#task-checklist-confirm").attr("href", $("#task-checklist-confirm").attr("href") + "&rewrite=Y");
				} else {
					$("#mod_rewrite_no_support").show();
				}
				checking.hide();
			},
			error: function() {
				$("#mod_rewrite_no_support").show();
				checking.hide();
			}
		});
	}
	if($("input[name='user_id']").size() && $("input[name='email_address']").size()) {
		var user_id_input = $("input[name='user_id']");
		var email_input = $("input[name='email_address']");
		email_input.on("blur", function() {
			if (user_id_input.val() == "" && email_input.val() != "") {
				user_id_input.val(email_input.val().replace(/@.+$/g, "").replace(/[^a-zA-Z0-9_]/g, ""));
			}
		});
	}
});